Dogs can tell when humans are happy or upset, study finds

A dog watching its owner smile may be doing much more than simply looking at a familiar face. Inside its brain, that smile appears to trigger a distinct response, one that researchers can tell apart from the reactions produced by anger, fear or sadness.   Scientists have long known that dogs are unusually good at […] The post Dogs can tell when humans are happy or upset, study finds first appeared on Dailynewsegypt.